[PATCH] Disable use of std::call_once on OpenBSD with libstdc++

[Dylan McKay via llvm-commits]

It looks like you’re duplicating this condition

!defined(_LIBCPP_VERSION)

Also, if you could raise a bug (BugZilla <https://llvm.org/bugs>).

Otherwise LGTM
​

On Sun, Oct 23, 2016 at 2:59 PM, Brad Smith via llvm-commits <
llvm-commits at lists.llvm.org> wrote:

> On 10/15/16 16:46, Brad Smith via llvm-commits wrote:
>
>> Disable the use of std::call_once on OpenBSD with libstc++. It was
>> noticed this caused
>> performance regressions and deadlocks.
>>
>> https://github.com/rust-lang/rust/issues/36905
>>
>>
> ping.
>
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